Question

Fill in the blanks
• Three factors affect enzyme activity:
– _____________________________________
• Enzymes from different organisms tend to work best at different optimum temperatures.
– ____________________
• The pH of a solution describes how________________ or ____________ the solution is.
• Most enzymes function in a very narrow pH range, which varies depending on the
enzyme and its job.
– _______________________________
• The more substrate molecules available, the ____________ the reaction rate, until
saturation

Answer 1

Here’s a possible way to fill in the blanks:

• Three factors affect enzyme activity:
– **Temperature, pH, and substrate concentration.**

• Enzymes from different organisms tend to work best at different optimum temperatures.
– **This is often related to the environment in which the organism lives.**

• The pH of a solution describes how **acidic** or **basic** the solution is.

• Most enzymes function in a very narrow pH range, which varies depending on the enzyme and its job.
– **This is crucial because extreme pH levels can denature the enzyme.**

• The more substrate molecules available, the **faster** the reaction rate, until saturation.